Home / 122,571.88-183,797.28-71,983.60

Finding the Fourth Proportional to 122,571.88, 183,797.28 and 71,983.60

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Solution

The fourth proportional to 122,571.88, 183,797.28 and 71,983.60 is: 107,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,571.88 : 183,797.28 = 71,983.60 : x
  2. Step 2: Convert to fraction form
    122,571.88/183,797.28 = 71,983.60/x
  3. Step 3: Cross multiply
    122,571.88x = 183,797.28 × 71,983.60
  4. Step 4: Simplify right side
    122,571.88x = 13,230,389,884.61
  5. Step 5: Solve for x
    x = 13,230,389,884.61/122,571.88
  6. Step 6: Final answer
    x = 107,939.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.